anatomical orbital pansi mbale

Mu anatomy, kanjira kameneka ndi kabowo kapena phata la chigaza momwe diso ndi zomangira zake zili."Orbit" ikhoza kutanthauza socket ya bony.Voliyumu ya orbit mwa munthu wamkulu ndi mamililita 30, diso limatenga 6.5 ml yonse.Zomwe zili mkati mwa orbital zimaphatikizapo diso, orbital ndi retrobulbar fascia, minofu ya extraocular, mitsempha ya cranial, mitsempha ya magazi, mafuta, lacrimal gland ndi thumba lake ndi duct, zikope, mitsempha yamkati ndi yapakatikati ya palpebral ligaments, fufuzani mitsempha, suspensory ligament, septum. , ciliary ganglion ndi mitsempha yaifupi ya ciliary.

Njira zake zimakhala zowoneka bwino kapena zibowo za piramidi zambali zinayi, zotseguka mpaka pakati pa nkhope ndikuloza m'mutu.Pansi, pamwamba ndi makoma anayi amapanga kanjira kalikonse.

Makoma a mafupa a ngalande ya orbital mwa anthu ndi zithunzi zisanu ndi ziwiri zosiyana, zomwe zimakhala ndi zygomatic bone laterally, sphenoid bone, ndi mapiko ake ang'onoang'ono omwe amapanga ngalande ya optic ndipo mapiko ake akuluakulu amapanga gawo lakumbuyo la fupa la orbital. , mafupa a maxillary otsika komanso apakati omwe, pamodzi ndi mafupa a lacrimal ndi ethmoid, amapanga khoma lapakati la ngalande ya orbital.Maselo a mpweya wa ethmoid ndi oonda kwambiri, ndipo amapanga mawonekedwe otchedwa lamina papyracea, mafupa olimba kwambiri mu chigaza, ndi amodzi mwa mafupa omwe amathyoka kwambiri pa orbital trauma.

Khoma lakumbuyo limapangidwa ndi njira yakutsogolo ya zygomatic komanso pambuyo pake ndi mbale ya orbital ya phiko lalikulu la sphenoid.Mafupa amakumana pa zygomaticosphenoid suture.Khoma lakumbuyo ndi khoma lokhuthala kwambiri la kanjirako, ndilo malo owonekera kwambiri, kotero kuti ndi kosavuta kukumana nawo pachiwopsezo cha kuvulala koopsa.

Kuwonongeka kwa khoma la orbital ndikofala kwambiri pakuphulika kwa orbital blowout fracture, yomwe nthawi zambiri imayambitsa zovuta monga kulowerera kwa enophthalmic, kusokonezeka kwamaso, diplopia ndi kusamuka kwamaso, zomwe zimakhudza kwambiri ntchito ndi mawonekedwe.Kwa fractures ya orbital blowout, opaleshoni iyenera kuchitidwa mwamsanga pamene intraocular invagion ndi yoposa 2mm ndipo malo ophwanyika ndi aakulu monga momwe CT yatsimikizira.Pokonza orbital fracture, zida zopangira zomwe zimagwiritsidwa ntchito nthawi zambiri ndi hydroxyapatite yokumba fupa, porous polyethylene polima zipangizo kupanga, hydroxyapatite zovuta ndi titaniyamu zitsulo zipangizo.Pakusankha kwa zinthu za orbital kukonza, implantation yoyenera iyenera kukhala ndi izi: kuyanjana kwachilengedwe, kosavuta kuumbika ndikuyikidwa m'zigawo zachilema za orbit, zomwe zimatha kusunga mawonekedwe ake opangira orbital kuti zisunge malo abwinobwino, zitha kusintha. kusowa kwa zomwe zili mkati mwa orbital ndikukulitsa voliyumu ya orbital, kukweza kwa voliyumu ya CT kuti athandizire kuyang'anira pambuyo pa opaleshoni.Popeza mauna a titaniyamu ndi osavuta kupanga ndipo amakhala ndi kukhazikika bwino, alibe mphamvu, carcinogenesis ndi teratogenicity pokhudzana ndi thupi la munthu, ndipo amatha kuphatikizidwa bwino ndi minyewa ya fupa, epithelium ndi minofu yolumikizana, chifukwa chake ndichitsulo chabwino kwambiri chokhala ndi biocompatibility. .

Ma Plate a Orbital Preformed adapangidwa kuchokera ku data ya CT scan.Ma mbalewa amakhala ndi ma implants omwe amafanana kwambiri ndi momwe thupi limakhalira pansi pa orbital ya munthu ndi khoma lapakati ndipo amapangidwira kuti agwiritsidwe ntchito povulala koopsa kwa craniomaxillofacial.Mawonekedwe a mbali zitatu: Amapangidwira kuti azipinda pang'ono ndi kudula zomwe zimachepetsa nthawi yofunikira kuti mbale ya contour.M'mphepete mwa mbale zopindika: Kuti mulowetse mbale mosavuta kudzera pakhungu komanso kusokoneza pang'ono pakati pa mbale ndi minofu yofewa yozungulira.Kapangidwe kagawo: Kupanga makonda kukula kwa mbale kuti igwirizane ndi orbital topography ndikusunga malire ozungulira okhala ndi m'mphepete pang'ono chakuthwa.Zone Yokhazikika: Imabwezeretsa mawonekedwe kumunsi kwa orbital kuti athandizire kukhala ndi malo oyenera padziko lapansi.mayankho athunthu pakukonza pansi kwa orbital ndikumanganso.